Windmill



A ril 29 1924. 7 1,492,236

' G.M.ASK

wINDMfLL Fi1ed June 19, 1922 2 Sheets-Sheet 1 INVENi'OR ATTORNEY Patented Apr. 29, 1924.

Utiiil ED STATES waist earsnr series.

GEORGE M. ASK, OFCORNiNG, CALIFORNIA.

'W'INDMILL.

Application filed June 19, 1922. Serial No. 569201.

T all whom it may concern:

Be it known that I, Gnoncn M. Ask. aortizen of the United States, and resident of thereby maintain a substantially uniform pumping speed.

It is another object of my invention to provide a w1nd mill structure of the character indicated thatmay be adjusted to operate at a given speed and that will autom atically adjust itself to maintain that given speed under varying wind velocities.

It is a still further object of my invention to provide a device of the character hereinbefore set forth that will be simple and economical in form, construction and method of operation.

In the drawing Figure 1 is a side elevation of my improved form of wind mill, parts being bro ken away.

Figure 2 is a plan view of the same.

Figure 3 is an enlarged detail of the vane adjusting carriage taken on line 33 of Figure 1, parts being broken away.

Referring more particularly to the drawing, I indicate at 1 a portion of a suitable supporting framework having a member 2 revolubly mounted thereon and carrying a frame 3 lying in a horizontal plane.

Depending from one end of frame 3 are lugs 4 having an arm 5 pivotally mounted thereon at 6., said arms extending upwardly and outwardly from frame 3 to a point 7 upon which is secured a weight 8. At the rear of arm 5 is attached a cable 9 as at 10. To a lug 11 formed on arm 5 below its pivotal point 6 is secured a vane 12 lying in a plane at right angles to the vertical plane in which arm 5 swings.

At 13 is shown a tube mounted on frame 3 by brackets 14:, said tube lying in the vertical plane in which the longer axis of frame 3 lies, and slightly above frame 3. Mounted to reciprocate in tube 13 is a rod 15 revolubly connected to carriage 16 mounted to reciprocate on guides 17, carriage 16 being connected by link 18 to pivotal point 19 on arm 5 between the pivotal point 6 of arm 5 and its weighted point 7.

On 'the'outer end of rod 15 is a fitting 20 to whicharepivotally attached rods 21.

Since two vanes of the windmill are similar in'construction but one will be described in detail, theother being indicated by similar numerals followed by an appropriate letter.

Bigidly mounted on the outer end of tube 13 1s a collar 22 carrying a head 23, thehead 23 having a bracket 24: rigidly mounted thereon. On bracket 24 is pivotally mounted a vane 25 by means of bearings 26., the said vane 25 being pivotally connected to rod 21 at a point intermediate its pivotal point and one end. Vane 25'is suitably curved toward the wind and braced by elements 27. .The

two vanes 2525 while similar in construc tion are mounted on brackets 2124; in such amanner asto slope away from the wind equally but in opposite directions. Since the wind pressure is equal on both vanes from a wind blowing in the direction indicated by the arrow, it follows that the vanes, the head 23 and the tube 13 upon which they are mounted and rod 15 are caused to rotate as a unit.

Passing vertically through the pivotal point of frame 3 is a tube 28, and encompassing tube 28 is a frame 29 supported on frame 3 by a brace 30. Frame 29 supports bearings 31 in which operates a tube shaft 32 carrying a gear 33 meshing with a pinion 34 on tube 13. Gear 33 carries a pin 35 on which is pivotally mounted a rod 36 pivotally attached to a guide member 37 mounted to reciprocate vertically on guide rods 33 and having the pump rod 39 attached thereto, the said pump rod 39 passing down through tube 28 to the pump not shown, Guide rods 38 are rigidly mounted on frame 29 carrying a terminal pulley 40 over which cable 9 passes, the said cable 9 passing down through tube 28 to any convenient place where a suitable weight as 41 is attached to it. 7

In operation it will first be assumed that the pump is to be operated at the highest speed 'of which it is capable. In that case cable 9 is sufficiently weighted to throw vane 12 into a vertical position and vanes 25-25 in an extended position as shown. The pump will now operate at full speed under suflicient wind pressure. If, however, the wind should develop a pressure greater than the device is built to withstand, then this excessive pressure operates vane 12 inwardly against the pull of counter weight 41, thereby automatically moving vanes 2525 into a position such as indicated in dotted lines at'42 Where thesu'rface presented to the Wind is greatly re:,

duced.

If it is desired to operate-thepump to deliver a certain given quantity of water as a maximum, then a pro-perwveighttl is mounted on cable 9 to determinethe/speed limit of the pump. If the-wind should develop a uniformly highpressure too great for the conditions pres'ented then the vane 12 is forced inwardly a certain distance so that the vanes 25-25 will present just sufficient surface-to the wind to develop the required speedot' rotationof tube; 13 and through the meehanis'm described; the required speed of 'reciprocatioirof pump'r' rod 32- v When the 'pump is to be put out of operation' entirely the cable 9 -is-1ope rated-- to throw vane 4 12- flat up against the bottom 1- of fr'ame3; thereby folding vanes 25 25 into a position'w'here no effective-resistance to the wind is'ofl redi It may now-be readilyseen thatr'by means of the-mechanism set forththe F maximumspeed of the Wind "mill; m-ay be -predetermined so that any given: maX-imumquantity of water may be pumped; the pumpingbf a greater amount of Water than that desired beingefitectually prevented by the automatic adjustment of vanes 2525 through the movement of vane 12 undera wind pressure sufiici'ent to overbalance Weight 41.

It istobe understood, of course, that while I have herein shown and described one particular embodiment of my invention, changes vane extending to the *opposite side of its pivotal point, a weight carried by said arm a weighted "cable connected to said arm to counterbalance-said weight, and. means for efi'ecting the adjustment of said first vanes through-the movemento-f said second vanes.

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